METHOD AND APPARATUS FOR VIDEO ENCODING AND DECODING

摘要

A method and an apparatus for encoding and decoding a video are provided to encode and transmit wavelet coefficients based on a visual weight value generated in consideration of a human visual system in a frequency domain and a space area, thereby encoding and transmitting a video of more improved quality in a low channel capacity. A method for encoding and decoding a video comprises the following steps of: generating wavelet transform coefficients by performing wavelet transformation for an input video(610); generating the visual weight value of the wavelet transform coefficients in consideration of human visual sensitivity in a space area and a frequency domain(620); determining the encoding order of the wavelet transform coefficients by using the generated visual weight value(630); and encoding the wavelet transform coefficients according to the determined encoding order(640).